An electrically conductive member of an image forming apparatus containing an impurity atom

An image forming apparatus provided with a contact charging device, in which an electrically conductive brush contacts a surface of an electrostatic latent image carrier for charging said surface, wherein brush hairs forming said electrically conductive brush are formed of electrically conductive rayon fibers, wherein an impurity comprising an atom selected from the group consisting of elements of Group IA, II, VI and VII of the Periodic Table is adhered to said rayon fiber, and a total content of said impurity atom is in a range from 0.05 wt % to 0.45 wt % with respect to all atoms including the impurity atom and atoms forming the electrically conductive brush.

An image forming apparatus provided with a contact charging device, in which an electrically conductive member contacts a surface of an electrostatic latent image carrier and a voltage is applied to said electrically conductive member for charging said surface, wherein an impurity comprising an atom selected from the group consisting of elements of Group IA, II, VI and VII of the Periodic Table is adhered to said electrically conductive member, a total content of said impurity atom is in a range from 0 05 wt % to 0 45 wt % with respect to all atoms including the impurity atom and atoms forming the electrically conductive member, and a speed of said surface of said electrostatic latent image carrier is 100 mm/sec or less.

A contact charging device for charging a surface of an electrostatic latent image carrier comprising an electrically conductive member, wherein an impurity comprising an atom selected from the group consisting of elements of Group IA, II, VI and VII of the Periodic Table is adhered to said electrically conductive member, a total content of said impurity atom is in a range from 0.05 wt % to 0.45 wt % with respect to all atoms including the impurity atom and atoms forming the electrically conductive member.